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A Round Robin preemptive scheduling example with quantum=3. Round-robin (RR) is one of the algorithms employed by process and network schedulers in computing. [1] [2] As the term is generally used, time slices (also known as time quanta) [3] are assigned to each process in equal portions and in circular order, handling all processes without priority (also known as cyclic executive).
Example of a round-robin tournament with 10 participants. A round-robin tournament or all-play-all tournament is a competition format in which each contestant meets every other participant, usually in turn. [1] [2] A round-robin contrasts with an elimination tournament, wherein participants are eliminated after a certain number of wins or losses.
In a Swiss tournament, each round would have to be divided up into four waves of eight matches each. This would result in a total of twenty-four waves over the minimum six rounds. Conversely, for a single elimination tournament, the first round would require four waves, the next two, and all remaining rounds would consist of a single wave each.
Weighted round robin [1] is a generalisation of round-robin scheduling. It serves a set of queues or tasks. Whereas round-robin cycles over the queues or tasks and gives one service opportunity per cycle, weighted round robin offers to each a fixed number of opportunities, as specified by the configured weight which serves to influence the ...
With straightforward Round-robin scheduling, every time a context switch occurs, a process would need to be swapped in (because only the 10 least recently used processes are swapped in). Choosing randomly among the processes would diminish the probability to 80% (40/50).
One common method of logically implementing the fair-share scheduling strategy is to recursively apply the round-robin scheduling strategy at each level of abstraction (processes, users, groups, etc.) The time quantum required by round-robin is arbitrary, as any equal division of time will produce the same results.
The name tournament comes from interpreting the graph as the outcome of a round-robin tournament, a game where each player is paired against every other exactly once. In a tournament, the vertices represent the players, and the edges between players point from the winner to the loser.
In a round-robin tournament, all playoff contenders play each other an equal number of times, usually once or twice (the latter is often called a "double round robin"). This is a common tournament format in association football. In the FIFA World Cup, teams are organized into eight pools of four teams, with each team playing the other three ...